1254. Triple-expansion steam engine special warship

Style: Historical Author: A book full of poems and thousands of flowersWords: 2359Update Time: 24/01/11 18:58:56
The group left the restaurant and came to the river.

The Hun River is a major river near Shenyang. The Hun River was called Shenshui in ancient times, also known as the Xiaoliao River.

Historically, it was the largest tributary of the Liao River, which originates from the Changbai Mountains. It flows through Fushun, Shenyang, and finally merges with the Taizi River in Panjin to form the Daliao River. The mouth of the Liao River is the seaport city of Yingkou. However, Yingkou was not built as a city until the late Qing Dynasty, and at this time it was a small fishing village.

This ship is not small, and uses the latest small steam engine. The design is to combine shallow-water heavy gunships with sea-going ships, and can sail in both inland rivers and offshore waters.

This steam engine is the first batch of trial-produced triple-expansion steam engines. The so-called triple expansion steam engine has three cylinders. Because the steam coming out of the first cylinder is still very hot, it would be wasteful to discharge it directly.

If the hot gas is introduced into the second cylinder to continue doing work, and then the hot gas is discharged to the third cylinder to continue doing work. In this way, the steam can be used three times. Make full use of the hot air, and by the time the third cylinder exhausts the gas, the temperature has dropped significantly.

In the Sino-Japanese War of 1894-1894, the cruiser Yoshino could reach a speed of 21 knots, far exceeding the warships of the Beiyang Navy. The main reason was that its power system was a triple-expansion steam engine.

This is equivalent to connecting three cylinders in series. The smallest cylinder produces half the force. Thermal efficiency is greatly improved without adding a boiler.

Because this ship is a special operations ship, it must be able to disguise itself as a merchant ship. Cumbersome steam engines cannot be used.

Therefore, this ship uses a small steam engine that burns heavy oil and is modified with modern old steel pipes and old cylinders. The first mass-produced triple-expansion steam engines were divided into light and heavy types.

The heavy ones are used for warships, and the light ones are used for special ships and small river vessels.

On the pier by the river, there are densely packed merchant ships docked.

Many of these merchant ships came from the Ming Dynasty and North Korea. Daikin very much welcomes businessmen to do business in Liaodong.

Because their living supplies are too scarce. They have no shortage of alluvial gold, furs, silver and various products unique to Liaodong. What they lack is food and daily necessities.

A group of people boarded the ship carrying the still unconscious members of the Shenyang station. Then put them into the bottom warehouse and let Guo Chengwen take care of them. Then the ship quietly weighed anchor and was propped up by bamboo poles as it silently sailed south along the river to the Hu family shack village ten miles away.

The Hujia shack village is located at a bend in the Hun River, in a small mountain depression three miles away.

There are more than a hundred stone houses here, which is a small mountain village. Because it is surrounded by mountains on three sides and only the west is plain. The terrain is relatively hidden. This is a secret stronghold of Li Yangeng.

Hong'er and Zhuzi put on stab-proof clothing, inserted steel plates into their clothes, and put on helmets. Then Hong'er's fifteen people, Zhuzhu's thirty people, and a servant from Xiaoqi also opened the box and put on the stab-proof clothing that came with the ship.

General Banner Dong Jin used a crowbar to pry open a box.

Revealing revolvers arranged in rows on wooden shelves inside. He said: "You have all used fire guns, right? This is a revolver that uses fixed bullets. It can fire six bullets continuously and has a range of fifty meters."

Dong Jin said, took out one and started to show how to use it.

"There is such a good thing, it's so convenient." Zhuzi said with admiration as he held it.

Before, they only had flintlock muskets and short-hand muskets, which needed to be loaded in advance. It is very troublesome to load the powder after shooting. Yang Fan directly made it double-barreled, so that he could fire two rounds at a time. The double barrels are heavy and it can be quite tiring for one person to carry two. After shooting, reloading takes time. This is the most dangerous time, the enemy may rush over.

The revolver is dark and does not reflect light at night. And it's lightweight.

Dong Jin said: "The first time you fire, you must use your thumb to lift the hammer. Remember, don't forget."

Although you have to reload after firing six rounds, there is a loader that can load six rounds at a time, which is very convenient.

Seeing that everyone had learned the lesson, Dong Jin gave everyone 240 rounds of bullets. Enough for forty refills.

Then he pried open a box, which contained grenades. Four more grenades were given to each man.

The servants took out six more gunpowder-propelled grenades and carried them on their shoulders. This thing is a launch tube made of thick paper shell. It can be used once and thrown away after shooting. It does not occupy the staff.

"Bring the explosives with you. The village walls and houses are made of stone. They may need to be blasted to open a way." Dong Jin said.

The people at the pillar picked out ten steel crossbows and brought them with them. This thing makes no sound in the dark, which makes it easy to detect the hidden whistle.

The servants are regular soldiers, and their combat capabilities are not comparable to those of Zhuzhu's and Hong'er's. This was Hong'er's courage to attack the Hu family's shack directly. That place is full of solid stone walls, making it easy to defend but difficult to attack. And I don’t know where and how many people Li Yangeng released.

Because it was midnight, the steam engine could not be started, so everyone had to get on the deck and use bamboo poles to punt the boat away from the dock.

Eton is a small patrol inspector who is responsible for collecting taxes here.

He got up to urinate in the middle of the night and thought he saw a boat leaving the dock. He was a little confused. What are these people doing moving ships in the middle of the night?

Immediately, it saw a merchant ship that had arrived ten days ago, seemingly from Tianjin.

Why are you walking in the middle of the night and not afraid of being stranded in the dark? He thought for a while, this ship had paid taxes. He didn't think much about it. As long as you paid the tax, I don't care what you do. He went back to sleep.

After leaving the dock, there was no one around. Autumn in Liaodong is a time of continuous autumn rain. The river is wide and the water volume is large. Both sides of the river are barren fields and the ruins of former villages.

In the years since the establishment of the slaves, things have gotten worse and worse. Even the area around Shenyang is in dilapidated condition. Production was completely scrapped. Only a small number of nobles still had a large number of slaves working in their estates, but some often escaped. Moreover, the efficiency is extremely low and the output is very little.

The captain is Huang Hao's subordinate, named Li Anshi.

Seeing that he had left the dock, he ordered the chimney to be installed and the steam engine to be lit.

The boat drifted quietly along the river. On one side the boiler was lit. The boiler uses a mixture of heavy oil and coal as fuel. The advantage of doing this is that it heats up very quickly. The flames became violent instantly.

After half an hour, the steam pressure was enough.

By this time, the boat had reached the river near the Hu family's shack. Stop slowly on the edge of the river embankment.

The boiler maintains the fire and the steam maintains the pressure. Because they were afraid of alerting the enemy, they did not dare to blow the whistle. Use a pressure relief valve to release excess steam.

"Captain Li, how are you preparing the steam engine?" Hong'er asked. "Let's go down now and we'll be back in an hour. There may be pursuers. We need to leave here at full speed as soon as we get on the boat."

"I know that the steam pressure is enough now. We maintain the boiler firepower. Once you get on the ship, we can start the propeller immediately. The triple-expansion steam engine can at least make the ship reach a speed of more than fifteen knots. We are going downstream again. Down here, the water flow is also very fast, the actual speed is estimated to be 20 to 25 knots. They can't catch up with us."

Hong'er nodded and said, "There are Eight Banners military camps along the way, and the cavalry may come to chase us. We also have to pass through Panjin City, where there is a fort for the slaves."

Dong Jin said: "We are going very fast, and if we go down the river, we will definitely be able to leave the mouth of the Liao River and enter the Bohai Bay before dawn. It's dark and the fort can't see the river clearly, so don't worry. Moreover, we read the intelligence before coming here. Jian Nu The fort was built during the Hongwu period, and the cannons on it are all general cannons with a range of only 500 meters. They can't hit us."

Hong'er was completely relieved. As soon as he reached the sea, Jiannu felt helpless.